ATE267774T1 - WASTE WATER PURIFICATION PROCESS - Google Patents
WASTE WATER PURIFICATION PROCESSInfo
- Publication number
- ATE267774T1 ATE267774T1 AT97202361T AT97202361T ATE267774T1 AT E267774 T1 ATE267774 T1 AT E267774T1 AT 97202361 T AT97202361 T AT 97202361T AT 97202361 T AT97202361 T AT 97202361T AT E267774 T1 ATE267774 T1 AT E267774T1
- Authority
- AT
- Austria
- Prior art keywords
- sludge
- water
- processes
- sludge water
- anoxic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
- C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Method for the treatment of waste water in which the waste water undergoes various processes, such as anaerobic processes, anoxic processes and aerobic processes. The processes are carried out with the aid of a population of bacteria which mainly consists of denitrifying phosphate-removing bacteria, or DPBs, with the composition of the sludge water in the various processes being maintained in such a state, by means of return flows of the sludge water to previous processes, that the DBP population achieves an optimum size. Waste water is treated by means of an anaerobic process in which the waste water is mixed with sludge water originating from an anoxic digester, with the sludge water being divided into phosphate-rich water and sludge water, to be processed separately, after which the sludge water is added to a mixing tank or contact tank, with aerobically treated sludge from a secondary sedimentation tank being added in order to improve the sedimentation properties of sludge present in the sludge water. The sludge water then goes through anoxic processes, after which part of the sludge water goes through aerobic processes while another part of the sludge water is returned from the anoxic process to the anaerobic process and goes through the previous processes again. Part of the sludge water which has gone through the aerobic processes is then returned to the anoxic process, while another part of the sludge water is conveyed to a secondary sedimentation tank, in which the sludge is separated by sedimentation into sludge and purified water or effluent. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1003711A NL1003711C2 (en) | 1996-07-31 | 1996-07-31 | Method for purifying waste water. |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE267774T1 true ATE267774T1 (en) | 2004-06-15 |
Family
ID=19763299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT97202361T ATE267774T1 (en) | 1996-07-31 | 1997-07-28 | WASTE WATER PURIFICATION PROCESS |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0822165B1 (en) |
AT (1) | ATE267774T1 (en) |
DE (1) | DE69729249T2 (en) |
NL (1) | NL1003711C2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1114797A1 (en) * | 2000-01-05 | 2001-07-11 | Sirius B.V. | Device for the purification of waste water. |
AU2001286133A1 (en) * | 2000-08-03 | 2002-02-18 | Bioclar, A.S. | Activated sludge method and device for the treatment of effluent with nitrogen and phosphorus removal |
CN101182072B (en) * | 2007-11-14 | 2010-06-02 | 哈尔滨工业大学 | Method for sludge decrement by using endogenous denitrification denitrification dephosphorization and reaction system |
CN101372378B (en) * | 2008-04-30 | 2010-09-15 | 北京工业大学 | Method for using SBR for quick start of continuous flow double sludge denitrification dephosphorization process |
CN102153249A (en) * | 2011-05-06 | 2011-08-17 | 北京剑平瑞华环保技术有限公司 | System and method for treating organic wastewater |
CN105731722B (en) * | 2016-02-03 | 2019-04-19 | 杭州聚合顺新材料股份有限公司 | Slices of caprone technique waste water processing unit and its processing method |
CN107010794B (en) * | 2017-06-06 | 2022-11-01 | 宁波德欣科技有限公司 | Dye wastewater treatment device and method |
CN109052820A (en) * | 2018-08-14 | 2018-12-21 | 国网陕西省电力公司电力科学研究院 | A kind of substation's sewage treatment Zero emission device |
CN113149363A (en) * | 2021-05-06 | 2021-07-23 | 杜普利 | MBR (membrane bioreactor) integrated treatment method for rural domestic sewage |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04151000A (en) * | 1990-10-16 | 1992-05-25 | Meidensha Corp | Method and apparatus for simultaneous removal of nitrogen and phosphorus |
DE4100685A1 (en) * | 1991-01-11 | 1992-07-16 | Sued Chemie Ag | METHOD FOR CLEANING WATER CONTAINING PHOSPHATES AND NITROGEN COMPOUNDS |
US5393427A (en) * | 1992-04-09 | 1995-02-28 | Barnard; James L. | Process for the biological treatment of wastewater |
US5380438A (en) * | 1993-08-17 | 1995-01-10 | City Of Atlanta | Treatment of wastewater through enhanced biological phosphorus removal |
NL9401806A (en) * | 1994-10-31 | 1996-06-03 | Rijkslandbouwhogeschool | Method for purifying carbon-, phosphorus- and nitrogen- containing wastewater |
-
1996
- 1996-07-31 NL NL1003711A patent/NL1003711C2/en not_active IP Right Cessation
-
1997
- 1997-07-28 AT AT97202361T patent/ATE267774T1/en not_active IP Right Cessation
- 1997-07-28 DE DE1997629249 patent/DE69729249T2/en not_active Expired - Lifetime
- 1997-07-28 EP EP19970202361 patent/EP0822165B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0822165A1 (en) | 1998-02-04 |
NL1003711C2 (en) | 1998-02-05 |
DE69729249D1 (en) | 2004-07-01 |
EP0822165B1 (en) | 2004-05-26 |
DE69729249T2 (en) | 2005-06-23 |
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Legal Events
Date | Code | Title | Description |
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UEP | Publication of translation of european patent specification |
Ref document number: 0822165 Country of ref document: EP |
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REN | Ceased due to non-payment of the annual fee |